Electroencephalogram signal amplification device



FIG. 1 is a perspective view of an electroencephalogram signal amplification device.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a right side view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for an electroencephalogram signal amplification device, substantially as shown and described. 